There we are! It took them a while, but Oracle has finally said a few things about the future of Sun's SPARC and Solaris products. Oracle placed an ad in the European edition of The Wall Street Journal listing four plans the company has with SPARC and Solaris.

Bold move, but then again it's Larry Ellison were talking about. I hope he ressurects the ROCK SPARC project, that had some real potential. SPARC is such an amazing and open architecture, may it live forever with a new injection of $$$ and hopefully tallented dev's behind it.

The cool thing about SPARC is that it's really fast. I couldn't believe the results of a $5000 Sun T1000 server, just a few weeks ago. And it's entry level that's going to be EOL-ed.

Most of all i am glad to see they will be investing a ton into Solaris, I think oracle could take it further than Sun ever could.

Currently they are investing in two areas in Solaris: Storage and Networking.
If the Solaris storage part (ZFS, Lustre/ZFS and Cluster) get's a few more features it's going to fly by NetApp, EMC and the rest. It's almost a complete solution. Regardless of what anyone thinks about ZFS, it's like comparing Windows XP and Snow Leopard. ZFS just works and it works easier than anything else on the market. Storage administration is fun again thanks to ZFS. Sure, you might be able to do the same things with solutions from other vendors, but they either come at a very high cost or they are less than easy to administer.
While the networking part is also getting some serious love, I'm not sure that it's ever going to be competitive with Cisco or Juniper. Linux or the BSDs still aren't at that level. For easy tasks, they work, but if you need firewall, content inspection, routing and QOS, it starts becoming a head-ache. A free head-ache, but a head-ache nevertheless. I can't imagine Solaris being less of a head-ache. It's probable going to be a bit easier to administer in some aspects, but I don't think a general purpose OS can go there.
Everything in Solaris fortunately just works as expected. Furthermore, it's the only UNIX out there still in development (AIX or HP-UX don't seem to get any love lately), and it's that good that it's actually worth giving up RHEL for it.

For easy tasks, they work, but if you need firewall, content inspection, routing and QOS, it starts becoming a head-ache.

It seems you have not spent much time with Cisco. Easy configuration is not a strong point. Firewalling, routing and QOS is all easier to set up on Linux/BSD than on Cisco. Or at least on OpenBSD, can't say I'm a fan of iptables.
It's also a bonus not having to deal with the awful CLI interface of IOS (it almost makes edlin look user friendly).